Tuesday, August 31, 2010
100 books to read!
A model Christian academic
I wish I was somewhere else
Monday, August 30, 2010
Polkinghorne on emergence in science and theology
As well as giving the talk I have been asked to prepare a white paper (due this friday), Is emergence the nature of physical reality? Consequently, I am wrestling with a chapter The Nature of Physical Reality, from Polkinhorne's 1991 book, Reason and Reality: The Relationship between Science and Theology, which was reprinted in the journal Zygon. Here are a few extracts I am trying to digest.
Abstract. This account of the dynamical theory of chaos leads to a metaphysical picture of a world with an open future, in which the laws of physics are emergent-downward approximations to a more subtle and supple reality and in which there is downward causation through information input as well as upward causation through energy input. Such a metaphysical picture can accommodate both human and divine agency.
Subatomic particles are not only not “more real” than a bacterial cell, they also have no greater privileged share in determining the nature of reality.
.... If apparently open behavior is associated with underlying apparently deterministic equations, which is to be taken to have the greater ontological seriousness—the behavior or the equations? Which is the approximation and which is the reality?
....epistemology and ontology are intimately connected. One can see how natural this view is for a scientist by considering the early history of quantum theory. Heisenberg’s famous discussion of thought experiments, such as the gamma-ray microscope, dealt with what can be measured. It was an epistemological analysis. Yet for the majority of physicists it led to ontological conclusions. They interpret the uncertainty principle as not being merely a principle of ignorance (as Bohm, for example, would interpret it) but as a principle of genuine indeterminacy. In an analogous way, it seems to me to be a coherent possibility to interpret the undoubted unpredictability of so much of physical process as indicating that process to be ontologically open.....
d’Espagnat [who discussed the philosophical implications of quantum theory] does not go all the way with Kant. He insists that independent reality is veiled rather than inaccessible; it is elusive rather than absolutely unknowable.
I am driven to greater metaphysical boldness .... I believe that his cautious invocation of veiledness is, at the least, not inconsistent with the kind of openness about the nature of reality that I am trying to explore.
.... such a world of intertwined order and novelty is just that which might be expected as the creation of a God both faithful and loving, who will endow God’s world with the twin gifts of reliability and freedom....
The correct lower-level description can only provide an envelope of possibility within which top-down causation will find its scope for realization.
..... God’s interaction with God’s own world can be expected to respect its freedom (including our own). God’s acts will be veiled within the unpredictability of complex process. They may be discernible by faith, but they will not be demonstrable by experiment.
Sunday, August 29, 2010
A poetic life
Friday, August 27, 2010
What is the object of our study?
“If theology allows itself to be called .... a “science”, in so doing it declares:
1. that like all other so-called sciences it is a human concern with a definite object of knowledge,
2. that like all others it treads a definite and self-consistent path of knowledge, and
3. that like all others it must give an account of this path to itself and to all others who are capable of concern for this object and therefore of treading this path….
to the discharge of its own task it must absolutely subordinate and if necessary sacrifice all concern for what is called science elsewhere. The existence of other sciences, and the praiseworthy fidelity with which many of them at least pursue their own axioms and methods, can and must remind it that it must pursue its own task in due order and with the same fidelity”
Church Dogmatics 1.1, The Doctrine of the Word of God, p.7-8.
Wednesday, August 25, 2010
A violent reality, from beginning to end
1Now I watched when the Lamb opened one of the seven seals, and I heard one of the four living creatures say with a voice like thunder, "Come!" 2And I looked, and behold, a white horse! And its rider had a bow, and a crown was given to him, and he came out conquering, and to conquer.3When he opened the second seal, I heard the second living creature say, "Come!" 4And out came another horse, bright red. Its rider was permitted to take peace from the earth, so that people should slay one another, and he was given a great sword.
The world is a very violent place. Surely this is an undeniable reality. But, we seem to be often surprised and shocked by this. This should bring us back to Genesis 4, where Cain murders Abel and Lamech describes his bloodthirsty lust for vengeance:
23Lamech said to his wives:
"Adah and Zillah, hear my voice;
you wives of Lamech, listen to what I say:
I have killed a man for wounding me,
a young man for striking me.
24 If Cain’s revenge is sevenfold,
then Lamech’s is seventy-sevenfold."
Cain and Abel, by Titian c. 1570
